Injective Dimension under Flat Base Change;
平坦同态下模的内射维数
In this paper,Author had discussed Gorenstein projective dimension and injective dimension of modules on Morita equivalence rings,the results as follow:If rings R≈S,then GpdRM=GpdSF(M),GidRM=GidSF(M).
在Morita等价的环上对模的Gorenstein投射维数与内射维数进行了讨论,有如下结论:若环R≈S,则GpdRM=GpdSF(M),GidRM=GidSF(M)。
Similar to the injective resolution of M,the essential injective resolution and left essential injective dimension of M are defined,and the connections between left injecti.
在M-内射模的基础上引进了M-本质内射模的概念,研讨了M-本质内射模的一些性质,并且引入了M的本质内射分解和本质内射维数的概念,深入探讨了内射维数和本质内射维数之间的关系,得出了一些重要的结论。
That the characters on projective dimensions and injective dimensions are given for a finitely generated modules over commutative artinian rings with identity and the homological characterizations of artinian rings.
揭示了有幺交换Artin环上有限生成模的投射维数及内射维数的特征，并给出Artin环的同调刻划。
Dual Module and FP-selfinjective Dimension over Coherent Ring;
凝聚环上的对偶模与FP-自内射维数
(n,0)-Projective Dimensions and (n,0)-Injective Covers
（n,0）-投射维数与（n,0）-内射覆盖
INFLUENCE OF STRUCTURAL PARAMETERS UPON TWO-DIMENSIONAL FLOW FIELD IN THE EJECTOR
结构参数对喷射器内二维流场的影响
Study on Multi-dimensional Numerical Simulation of In-cylinder Radiation Heat Transfer of Diesel Engine
柴油机缸内辐射换热的多维数值模拟研究
Numerical Disposal of Three Dimensional Differential Coefficient Equation about Duct Flow Ejected by the Pulverized Coal & Air-Injector with Multiple Holes;
多股流粉煤—空气喷枪在圆管内射流三维微分方程的数值处理
Optical fibre: Flexible transparent fibre devices, used for either image or data transmission, in which light is propagated by total internal reflection.
光导纤维（光纤）:柔软的透明纤维组织，光线由内部的全反射而激增散播。用来传送影像或数据。
On Small Contraction Maps of Projective Varieties Odd Dimensional;
关于奇数维射影代数簇的小收缩态射的研究
Dual exponential map parameterization of maintenance Agent model
维修Agent模型的双指数映射参数化方法
Structure of the Minimal Dimensional Exceptional Locus of Small Contraction over Projective Varieties of Odd Dimension;
奇维数射影代数簇的小收缩态射的极小维例外集的结构
The energy density of the4- dimensional spacetime is supposed to be dominated by incoherent radiation and the energy-momentum tensor of the internal subspace is a step function.
我们假定四维时空的能量密度是以辐射为主的,而内禀子空间的能动张量是一个阶跃函数。
The Simulation of 3D Model for LPG Direct Injection Engine;
LPG缸内直接喷射发动机三维模型仿真
3D Numerical Simulation on the Process of the Missile Underwater Launching and Exiting from Water
潜射导弹水下发射及出水过程三维数值研究
Investigation of PAN-based carbon fiber microstructure by 2D-SAXS
二维小角X射线散射法研究PAN基炭纤维内部微孔结构
Numerical Solution of the Limited Aperture Problem in Three-Dimensional Inverse Acoustic Scattering
三维有限孔径逆声散射问题的数值解
The Numerical Solution of Scalar Field Radiation in 5D Black String Space;
5维黑弦时空中的标场辐射的数值解
Study on Nef-Value Morphisms of Higher Dimensional Projective Varieties;
关于高维代数簇的nef-值态射的研究
Process of Carbon-fibre s Digital X-ray Image;
碳纤维数字X射线的图像处理与计算
Small Finite Graded Projective Dimension gr.fp.dimR of Gr-Coherent Rings;
Gr-凝聚环的小有限分次投射维数gr.fp.dimR